Basically, this is saying you need to respond to how you are going to prepare yourself for your stay and is telling you to look for specific information on the country you are going to
Does that help?
No, "avant Jesus- Christ" -av. J.C. = BC
(avant = before)
AD = Anno Domini (in Latin) = après Jesus-Christ, after Jesus Christ
hope I helped !
It is better to say
“Elle se peigne les cheveux »
